MX9708779A - Incorporation of quinacridone additives during quinacridone preparation. - Google Patents
Incorporation of quinacridone additives during quinacridone preparation.Info
- Publication number
- MX9708779A MX9708779A MX9708779A MX9708779A MX9708779A MX 9708779 A MX9708779 A MX 9708779A MX 9708779 A MX9708779 A MX 9708779A MX 9708779 A MX9708779 A MX 9708779A MX 9708779 A MX9708779 A MX 9708779A
- Authority
- MX
- Mexico
- Prior art keywords
- quinacridone
- acid
- dianilino
- component
- preparation
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0033—Blends of pigments; Mixtured crystals; Solid solutions
- C09B67/0034—Mixtures of two or more pigments or dyes of the same type
- C09B67/0036—Mixtures of quinacridones
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B48/00—Quinacridones
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Abstract
This invention relates to a process for the preparation of quinacridone pigments by (a) heating a reaction mixture comprising (i) a 2,5-dianilinoterephthalic acid, a 2,5-dianilino-6,13-dihydroterephthalic acid, or la 2,5-dianilino-3,6-dioxo-1,4-cyclohexadiene-1,4-docarboxylic acid; (ii) about 0.1 to about 15 percent by weight, based on component (a)(i), of one or more sulfonyl-containing derivatives of 2,5-dianilinoterephthalic acid, 2,5-dianilino-6,13-dihydroterephthalic acid, and/or 2,5-dianilino-3,6-dioxo-1,4-cyclohexadiene-1,4-dicarboxylic acid; and (iii) about 3 to about 20 parts by weight, per part of component (a)(i), of a dehydrating agent, with the proviso that if either component (a)(i) or component (a)(ii) is a 2,5-dianilino-6,13-dihydroterephthalic acid or derivative thereof, reaction step (a) additionally comprises an oxidation step; (b) drowning the reaction mixture from step (a) with a liquid in which the quinacridone pigment is substantially insoluble; and (c) isolating the quinacridone pigment.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08748742 | 1996-11-18 | ||
US08/748,742 US5755873A (en) | 1996-11-18 | 1996-11-18 | Incorporation of quinacridone additives during quinacridone preparation |
Publications (2)
Publication Number | Publication Date |
---|---|
MX9708779A true MX9708779A (en) | 1998-05-31 |
MXPA97008779A MXPA97008779A (en) | 1998-10-23 |
Family
ID=
Also Published As
Publication number | Publication date |
---|---|
CA2219294A1 (en) | 1998-05-18 |
EP0842987A2 (en) | 1998-05-20 |
DE69715130D1 (en) | 2002-10-10 |
CA2219294C (en) | 2007-01-09 |
US5755873A (en) | 1998-05-26 |
DE69715130T2 (en) | 2003-01-16 |
EP0842987B1 (en) | 2002-09-04 |
EP0842987A3 (en) | 1998-08-05 |
JPH10158536A (en) | 1998-06-16 |
JP4205190B2 (en) | 2009-01-07 |
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FA | Abandonment or withdrawal |